DOM Inspector 需要重开
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Adds some tools to import and export folders and messages
Mail Redirect 需要重开
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Minimizes windows into the system tray.
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
FlashGot 需要重开 精选
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
This extension enables true full screen mode in SeaMonkey for HTML5 video players, slide-shows, etc. and also for full screen invoked manually with the F11 key.
Automatically do Archive/Copy/Delete/Move actions based on user defined rules
Element Hiding Helper 是 Adblock Plus 的一个辅助扩展, 可以让用户能更加简便的隐藏页面元素以去除文本广告.
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
Adds Firefox-style tab closers into SeaMonkey.
A fork of PDF.js with support for SeaMonkey 2.49.x.
Dorando keyconfig 需要重开
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
The first and only download manager/accelerator built inside Firefox!